The next time your parents ask you to wash your hands before dinner, read this worksheet about Joseph Lister and take their advice!

Just like people, animals have babies that grow up into adults. On this worksheet, Kids draw a line to match each baby with its adult version.

Who feels at home scaling a nice, big tree? This word search is a fun way for your little one to familiarize themselves with different tree-climbing animals.

An energy pyramid is a simple way to graphically show how energy flows in an ecological community; somewhat similar to the food pyramid.

Are you aware of how many endangered species there are in the world? Use this trivia sheet to test your knowledge of some beautiful but endangered animals.

Learn about Yellowstone National Park's peregrine falcons, which survived heavy pesticide use in the 1960s.

Whether you say buffalo or bison, it is still the largest land mammal in North America. Discover a bit more about this majestic animal.

Mammals come in all shapes and sizes - as big as a human or as small as a mouse! Learn about the life cycle of a mouse with this cut and paste activity.

The horned lizard has a scary exterior but a gentle personality. Your little student can learn about this North American lizard with this worksheet.

Use this fun frog worksheet to practice place value and expanding numbers.

Check out the alligator gar's huge jaw, and color it in!

Take a quick lesson in the otters that inhabit Yellowstone National Park and take an even quicker quiz.

Introduce your student to an endangered species, Przewalski's horse, with this information sheet. They can color the illustration as they read.

There aren't many blue animals out there, but here's one that will be fun to color: the blue dart frog. Its bright color warns predators that it is poisonous.

Learn more about what lives--and what thrives--in marshes with this fill-in-the-blank worksheet on marsh ecosystems.

Why did the fox cross the road? To look for the chicken! This fun worksheet is jam-packed with fun facts about foxes!

This is the story of our solar system. Learn about the life of Nicolaus Copurnicas and his great discovery. Learn more by answering the question at the bottom.

Help your child learn about the nervous system and the digestive system with this fun worksheet, which will challenge his knowledge of physiology.

Bird-watchers will love this worksheet, featuring just a sample of the many song birds flying around Yellowstone National Park.

The olm is a blind salamander that lives in Europe. Kids will learn how pictures help illustrate concepts with this life science worksheet.

Read about one of Yellowstone National Park's coolest animals, the big horn sheep.

Here's a creature that can be a heard a mile away: a thick-billed parrot. Learn more about these birds that are the only parrots native to the USA.

Give your little animal lover a great coloring sheet, complete with a few fun facts about the red kangaroo!

This nature coloring page features a detailed depiction of Hibiscus flowers and an African Mantis that your second grader can bring to life by adding color!

What delicious treats do we receive from trees? Your child can draw their favorite tree-provided snacks in this cute drawing worksheet.

Did you know that cheetahs are the fastest land mammal? This fun worksheet is jam-packed with fun facts all about the cheetah.

Download this worksheet for answers to our animal reading comprehension series.

Did you know a baby kangaroo is called a joey? This fun worksheet is jam-packed with fun facts, a word search and trivia, all about the kangaroo!

When we get embarrassed or anxious, and all of a sudden our cheeks get red! Why does our body do this? Find out what scientists think blushing is all about.

Help your child read this page about the Sumatran rhinoceros, where they can color an illustration as they learn about why this animal is endangered.